HVAC Companies

Home Owners

About FES

﻿Founded in 2013, FES is a customer-focused performance contractor and consultant, promoting and developing high performance new residences and existing homes.​We advise home owners, builders and lending institutions on high performance energy and water conservation strategies in an effort of increase awareness of performance features and how they can support efficiency in homes in San Antonio and the surrounding area.

Energy Efficiency Testing & Solutions

Credits & Rebates

We're here to help you get the most bang for your buck for every dollar spent on improvements. We know which projects have the fastest ROI! ​

Energy Audits

FES performs complete building diagnostics in order to identify retrofit projects that will guarantee the fastest return on your investment.

Code Compliance

IECC 2015 Code states that new homes in San Antonio must have mechanical and envelope testing, and pass stricter requirements for energy usage.

perfect water for every person, every place

Each 4' x 8' array contains two panels, and holds 60 liters of water in a tank that mineralizes and keeps water clean for optimal taste and health.The water can be delivered to a tap, fridge, or wall-mounted dispenser from a pump at 80 psi. Source Hydropanels are a fully off-grid solution, powered by a solar panel and a small battery.

What is a HERS Rating:

The HERS Rating measures a home's energy efficiency. It is the most in-depth, energy efficiency inspection that can be performed on a home today.

Reasons Home Owners Get a ​HERS Rating:

Using a Texas Vet Loan

Want to obtain utility rebates

Want to obtain Energy Star Certification​

Selling a home and want to command a higher sale price

Buying a home and want an accurate idea of energy usage / retrofit project cost

HERS Ratings: Builders

Now that all of San Antonio is adhering to the more strict 2015 code, set yourself and your homes apart with a HERS Rating on every home you build. We'll provide estimated utility bills for your homebuyers, too!​HERS Rated homes are better!